Jason Alexander
Acting
🎂 1959-09-23
Jay Scott Greenspan, better known by his professional name of Jason Alexander, is an American actor, writer, comedian, television director and producer, and singer. He is best known for his role as George Costanza on the television series Seinfeld, appearing in the sitcom from 1989 to 1998. He also has had an active career on the stage, appearing in several Broadway musicals including Jerome Robbins' Broadway in 1989, for which he won the Tony Award as Best Actor in a Musical. He appeared in the Los Angeles production of The Producers with Martin Short. He is the Artistic Director of "Reprise! Broadway's Best in Los Angeles," where he has directed several musicals. Alexander is also an avid poker player.
Cast credits(213)
Self
2005
Self
2014
Prof. Rothchild
2005
Bourbon Verlander (voice)
1989
Self
2015
Dr. Goodman
2003
Self - Guest
2004
Rick (voice)
2014
Kurros
1995
Mr. Orlando (voice)
2005
Sal (voice)
2005
Self - Guest
1988
Self
2011
Jason Alexander
2000
Doctor Noum (voice)
2021
Counselor Noum (voice)
2021
George Costanza
1989
Earl
1994
Krampus (voice)
2005
Gene Lundy
2017
Self
2001
Asher Friedman
2017
Marty Eels
2002
Self - Panelist
1998
1998
1982
2009
2003
Self
2003
Jason Alexander
1992
Patient
2002
Mountain Man
2009
Self
2020
Self - Special Guest
2020
Leonard
2000
Abis Mal (voice)
1994
Captain Albatross (voice)
1994
Abis Mal / Abnor Mal (voice)
1994
Pastor Phil
2018
Olix
2017
Zutho (voice)
2001
Mr. Nibbles
2010
Mr. Nibbles (voice)
2010
Sy Borgman (voice)
2019
William Tweed
2013
2001
Self - Host
1975
Self - Cameo (uncredited)
1975
Self - Presenter
1956
Self
2003
Self
1982
Self
2013
Grown Baby (voice)
1991
Stu (voice)
1991
Gus Molehill (voice)
1991
The Job Wizard (voice)
1991
General H. Norman Conquest (voice)
1991
Sexual Harris (voice)
1991
UFO! Host / Announcer (voice)
1991
2005
Self
2019
Self - Guest
1999
2000
2001
Doctor (voice)
2014
Self
2012
Maurice Cheeks
2023
Poseidon
1998
Poseidon (voice)
1998
Self - Contestant
2021
2006
Self - Panelist
2016
Jonathan Fartjoke (voice)
2024
Catbert (voice)
1999
Alan Ballinger
1996
Self
2016
Self
1949
Dr. Palmer
2006
Self - Panelist
2016
Goji (voice)
2017
Coach Wallace (voice)
2014
Self
2008
Harold Stickley
1984
1984
Himself - Narrator (voice)
1983
Harold (voice)
2011
Dr. Chetwyn
2009
Carl Laemmle
2024
Inspector Gantlet
2012
Self - Panelist
2010
Ken Swallow
2017
Tony Kleinman
2004
Ted / Wingman
2025
Self - Actor
2021
Randall Townsend
1990
Jason Alexander
2019
Philip Stuckey
1990
Duckman (voice)
1994
Julian Beeby
1987
Chris Van Allen
1988
2008
Richard Cross
2011
Gargoyle Hugo (voice)
1996
Jayda's Dad (voice)
2023
Self
2001
Carl
2009
Jason Alexander
2015
Pinky
2015
Self
1996
Jason Alexander
2017
Cliff Bemis
2015
2000
Self - Guest
2006
Bob Patterson
2001
Mauricio
2001
Larry Farber
1993
Titey (voice)
Gargoyle Hugo (voice)
2002
Abis Mal - the Chief of the Thieves (voice)
1994
Geary
1990
Lightning (voice)
2003
Stanford Temple
2013
Self
2007
North's Dad
1994
British Record Mogul
2006
Self
1980
Hardware Clerk
1986
Mr. Stone
1994
Boris
2000
Mr. Bibb / The Nome King (voice)
2016
Neil
1990
Lionel
1997
Anti-Enviroment
1995
Self
2016
Robert Grant
1996
Dr. Yakov Achmed
2007
2006
Cosmo
2011
Dave
1981
Self
2005
Marion Sandusky
1994
Noah Brooks (voice)
2025
Self
2016
Moronic (voice)
2010
Self
2017
Self
2015
Albert J. Peterson
1995
Self
2016
Penguin on Belly (voice)
2006
Sid Rosenthal
2012
Father (voice)
2001
Dr. Sternbach
2020
Self - Performer
2023
Self (uncredited)
2012
self
2005
Self - Roastmaster
2006
Pool Player #1
1986
Larry's Dad
2015
Johnny
2006
Dr. Mendelbaum
2024
Uncle Horst / Henri (voice)
1999
Self
2017
Self
2021
Elf (Voice)
1999
Self
2022
Jacob Marley / Marley's Ghost
2004
Art Witz
1998
2022
Eugene (voice)
2011
Himself
2012
Mailman Stan
2010
Self
1999
Self
2016
Dr. Morris Saperstein
2006
Doc Holiday (voice)
2014
Michael Makeshift
1995
Self - Roastmaster
1999
Nicky Steele
2020
Vinnie Di Ruzzio
2014
Harold
2015
Mark Lembeck
2016
A.C. Gilbert
2002
Frank Bonner
1999
Self/George Costanza
2004
Pete
1981
Lt. Ernest Foy
1986
Buzz Hauser
1997
Self
2022
Narrator
2020
Titey (voice)
1998
Self
2004
Self (archive footage)
2003
Self
2025
2022
Quote Reader
1996
Bernie Fishbine
1992
1995
Dr. Chetwyn
2009
Sid Rosenthal
2010
Jason Alexander
2018
Mervyn
Frank
1993
Barry Dragonetti
2018
Owl (voice)
2011
Self
2001
1994
Electronics Store Customer
1993
Host
1999
Himself
2007
Narrator
1999
Jason Alexander (archival footage)
2022
2000
